Home / 27,651.39-38,146.79-18,695.61

Finding the Fourth Proportional to 27,651.39, 38,146.79 and 18,695.61

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Solution

The fourth proportional to 27,651.39, 38,146.79 and 18,695.61 is: 25,791.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,651.39 : 38,146.79 = 18,695.61 : x
  2. Step 2: Convert to fraction form
    27,651.39/38,146.79 = 18,695.61/x
  3. Step 3: Cross multiply
    27,651.39x = 38,146.79 × 18,695.61
  4. Step 4: Simplify right side
    27,651.39x = 713,177,415.11
  5. Step 5: Solve for x
    x = 713,177,415.11/27,651.39
  6. Step 6: Final answer
    x = 25,791.74

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.